Steam-packing.



G. S. R. DIOKSON.

STEAM PACKING.

APPLIOATIOH FILED r3119, 1914.

1,103,744. Patented July 14,1914,

fiiliinsacsw GEORGE STEWART ROWLAND DICKSON, OF NEW YORK, N. Y.

STEAM-PACKING.

Specification of Letters Eatcnt.

Patented July 14, 1914.

Application filed February 18, 1814. Serial No. 819,519.

To all whom it may concern:

Be it known that I, Gsoaon Srnwmrr ROWLAND DICKSON, a subject of the King of Great Britain, residinlg county of New Yor and State of New York, have invented certain new and useful Improvements in Steam-Packing; and I do hereby declare the following to be a full, clear, and exact descri tion of the invention, such as will enable ot icrs skilled in the art to which it appertains to make and use the same.

This invention relates to packing and especially packing for piston rods and the like and has for an object to provides. packing presenting a metallic inner wearing surface with improved means for retaining the metallic wearing material in combination with the fibrous material in which it is embedded.

A further object of the invention is to llOVldQ an improved form of metal to embed in the fibrous material of the packing whereby such metal is retained in proper position relative to the fibrous material.

With these and other objects in view the invention comprises certain novel constructions, combinations and arrangements of parts as will be hereinafter more fully described and claimed.

In the drawings: Figure 1 is a view of a ring of the packing in side elevation parts being broken away to show the interlaid metal in side elevation. Fig. 2 is a view of the inner periphery of the packing ring. Fig. 8 is a cross sectional view of the packing taken onlines 3-3 of Figs. 1 and Fig. 4 is a perspective view of the interlaid material.

Like characters of reference indicate corresponding parts throughout the several views.

In the making of a. packing for use upon piston rods and other moving parts, it is desirable to present a metallic surface to the wear of the rod and also to employ a fibrous material which may be compressed as found desirable for producing a steam tight joint. Difiicult is experienced in the combining of a metallic wear material with the fibrous material to prevent the fibrous material from parting company with the metallic wear materia The present invention involves the em- )loyment of a metallic strip as indicated at ig. 4 which is in the form of an I-beam at New York, in the having a web with flanges 11 and 12. The fla es 11 and 12 are cut transversely preferab y in staggered relation as shown more articularly at Figs. 1 and 4 and the metal is then embedded in the fibrous material as indicated at Fig. 3. This embedding is accomplished in any of the usual well known manners as by employing asbestos or like material 13 packed about the metal with one of the flanges as 12 exposed. For strength and resiliency a fabric strip 14 is also embedded in the fibrous material 13 adjacent to flange 11 and the whole structure is inclosed in a fabric envelop 15 exposing only the sections of the flange 12. At some time during the manufacture of the article and in the usual well known manner the packing stri is curved to the desired curvature as indicated at Fig. 1 whereby the uncut sections of the flange 12 are moved nearer to each other and the uncut sections of the flange 11 are moved further away from each other, thereby respectively decreasing and increasing the intervals between such uncut portions.

As will be apparent from Figs. 1, 2 and 3, the uncut portions of the flange 12 are exposed upon the inner surface of the completed packing strip so that such uncut portions of the flange come into wearing engagement with the rod or other article about which the device is used.

It is apparent that should the packing be desired for use wherein the wear would be applied to the external periphery the curvature would be reversed so that the uncut portions of the flan e 12 would be exposed upon the exterior o the strip.

By the formation of the wear strip as an I-beam the bottom flange 11 embedded in the material 13 serves to hold the metal wear strip in osition as tho fibrous material is packed a out such flange and the web 10 giving a suiiicient space for proper retention of the metal strip of such fibrous material.

I claim:

1. In a packing strip, a wear metal of substantial I formation, having its flanges cut at intervals; a fibrous material acked about one flange and the web of sai wear material with the other flange exposed and an envelop inclosing the fibrous material and the wear metal, except the exposed portions.

2. In a packing strip, a wear metal of substantial I formation, having its flanges out from opposite sides in staggered relation; a fibrous material packed about one flange and the web of said wear strip; a fabric envelop inclosing the fibrous material and the wear metal with one flange exposed, said completed artic'le being curved presenting the ex osed flange upon the wearing surface of t 10 strip.

3. In a packing strip, a wear metal of substantial I formation; a fibrous material acked about said wear strip, a reinforcing fabric embedded in the fibrous material adjoining one of the flanges of the wear metal; and a fabric envelop inclosing the fibrous materialwith one of the flanges of the wear .metal exposed, the structure being curved to bring the exposed flange of wear metal on the contacting side of the packing strip.

In testimony whereof I afiix my signature in presence of two witnesses.

GEORGE STEWART ROWLAND DICKSON. \Vitnesses:

James Cnms'rA'r. HARRY F. BRIGHTON.

some: 0! this patent may be obtained to: a" cent: each, by lddreninl the Oommluloner of Patents. Washington, D. O. 

